Holden 253-308 4 Bolt Main Cap Set MI11570 Product:(Angle Side Bolts) Sizes from -4 to -20

Sizes from -4 to -20 an flare

0:1 Dome Volume: -20

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Holden 253-308 4 Bolt Main Cap Set MI11570 Product:(Angle Side Bolts) Sizes from -4 to -20Holden 253 308 4 Bolt Main Cap Set(Angle Side Bolts) MI11570 11570 These aftermarket main caps will strengthen not only factory 2 bolt blocks, but also 4 bolts. Unlike the factory main caps, these not only have more cross sectional strength, but the real strength secret is in the angled side bolts! The side bolts are angled so they pull from the side walls of the block and not the flimsy main web area. A bolt that is angled will require a massive